Waste bin



FIG. 1 shows a top plan view of a waste bin showing my new design;

FIG. 2 shows a right elevational view thereof, with the left elevational view being a mirror image of the right elevational view of FIG. 2

FIG. 3 shows a rear elevational view thereof; and,

FIG. 4 shows a front elevational view thereof. 

The ornamental design for a waste bin, as shown and described. 